Patents by Inventor Naim Karazivan

Naim Karazivan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11813141
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: November 14, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Naim Karazivan, Paul Pierson, Christos Angeletakis
  • Patent number: 11766177
    Abstract: A dental probe for determining the vitality of a tooth, comprising a light emitter and a light receiver, wherein the light emitter emits light from an emitter surface adapted to be positioned on a hard dental surface of a tooth, wherein the light receiver collects light incident on a receiver surface adapted to be positioned on a hard dental surface of the tooth so that the optical path of the light emitted from the light emitter passes at least through a portion of the pulp chamber of the tooth. The light receiver includes a light shielding spacer member adjacent to the optical path for establishing and maintaining a distance of at least 50 ?m between the gum line and the optical path at the receiver surface.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: September 26, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Thomas Ertl, Naim Karazivan, Alexander Savic
  • Publication number: 20230013268
    Abstract: Described herein is a dental material applicator system comprising a segmented capsule and handpiece. The capsule separately holds a powder and a liquid such that upon activation in the handpiece by an operator, the powder and liquid are mixed into a paste. The operator then triggers the handpiece so that the mixed paste is extruded.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: PAUL R. PIERSON, CHRISTOPH WEBER, PETER MAX COVELESKI, KENNETH R. GUARAGNO, NAIM KARAZIVAN, JAMES SIRKIS
  • Patent number: 11478332
    Abstract: Described herein is a dental material applicator system comprising a segmented capsule and handpiece. The capsule separately holds a powder and a liquid such that upon activation in the handpiece by an operator, the powder and liquid are mixed into a paste. The operator then triggers the handpiece so that the mixed paste is extruded.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 25, 2022
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Paul R Pierson, Christoph Weber, Peter Max Coveleski, Kenneth R Guaragno, Naim Karazivan, James Sirkis
  • Publication number: 20220151740
    Abstract: Dental device (1) for ridge preservation around the socket (2) of an extracted tooth and for promoting jaw bone regeneration inside the socket (2) of the extracted tooth, the dental device (1) comprising: a screw (3) which is entirely made of a biodegradable material to eliminate the need for a removal surgery, wherein the screw (3) is adapted for tight fixation within the jaw bone (4) in the socket (2) to prevent micromovements during bone-tissue regeneration, wherein the screw (2) has a length such that its top is, in the inserted state, flush with the alveolar ridge (5) around the socket (2) to promote full bone regeneration inside the socket (2), and wherein the screw (3) has a hollow (6) and pores (7), wherein the diameters of the pore (7) is substantially equal to or larger than 20 micrometers.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 19, 2022
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Martin RUETZE, Naim KARAZIVAN
  • Publication number: 20220023014
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Naim Karazivan, Xin HUO, Dustin Gaidos, Leonid Silverman
  • Publication number: 20210369120
    Abstract: A dental probe for determining the vitality of a tooth, comprising a light emitter and a light receiver, wherein the light emitter emits light from an emitter surface adapted to be positioned on a hard dental surface of a tooth, wherein the light receiver collects light incident on a receiver surface adapted to be positioned on a hard dental surface of the tooth so that the optical path of the light emitted from the light emitter passes at least through a portion of the pulp chamber of the tooth. The light receiver includes a light shielding spacer member adjacent to the optical path for establishing and maintaining a distance of at least 50 ?m between the gum line and the optical path at the receiver surface.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 2, 2021
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Thomas ERTL, Naim KARAZIVAN, Alexander SAVIC
  • Publication number: 20210275286
    Abstract: A three-dimensional printing system including a feed source of uncured filled resin material, a print head configured to apply discrete layers of a composition including upconversion phosphors, and a radiation source configured to irradiate layers of uncured filled resin material and deposited layers of the composition is provided. A method of three dimensionally printing a dental article is also provided.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Naim KARAZIVAN, Hui LU, Thomas ERTL
  • Patent number: 11045295
    Abstract: A three-dimensional printing system including a feed source of uncured filled resin material, a print head configured to apply discrete layers of a composition including upconversion phosphors, and a radiation source configured to irradiate layers of uncured filled resin material and deposited layers of the composition is provided. A method of three dimensionally printing a dental article is also provided.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: June 29, 2021
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Naim Karazivan, Hui Lu, Thomas Ertl
  • Patent number: 10456228
    Abstract: A method of diagnosing optical inhomogeneity of a volume scattering object is provided. The method includes the steps of providing a substance coated with phosphorous materials, adapting the substrate to a surface of a volume scattering object to be diagnosed, and trans-illuminating the volume scattering object with radiation. A dental tool including a substrate is also provided. The substrate includes a transparent flexible film or metallic foil with an applied coating of upconversion phosphors, afterglow particles or both.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 29, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Naim Karazivan, Hui Lu, Thomas Ertl
  • Patent number: 10350028
    Abstract: A multi-directional handpiece that includes a motor drive extending along and configured for rotation about a body axis, the motor drive having: a motor gearing at a proximal end of the motor drive; and a file gearing in engagement with the motor gearing for transferring the rotational and axial movement to a workpiece; and a housing for the workpiece; and wherein through rotation of the motor drive, the workpiece moves in an axial oscillating motion while being rotated.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: July 16, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Vincent Shotton, Dan Ammon, Naim Karazivan
  • Publication number: 20190110689
    Abstract: A dental probe for determining the vitality of a tooth, comprising (A) a light emitter and (B) a light receiver, wherein the light emitter emits light from an emitter surface adapted to be positioned on a hard dental surface of a tooth, wherein the light receiver collects light incident on a receiver surface adapted to be positioned on a hard dental surface of the tooth so that the optical path of the light emitted from the light emitter passes at least through a portion of the pulp chamber of the tooth, characterized in that the light receiver comprises (a) a light shielding spacer member adjacent to the optical path for establishing and maintaining a distance of at least 50 ?m between the gum line and the optical path at the receiver surface, and in that the light emitter comprises (c) a light shielding spacer member adjacent to the optical path for establishing and maintaining a distance between the gum line and the optical path at the emitter surface, wherein the light shielding spacer member establishes
    Type: Application
    Filed: April 7, 2017
    Publication date: April 18, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Thomas ERTL, Naim KARAZIVAN, Alexander SAVIC
  • Patent number: 10238476
    Abstract: A method of attaching a dental article to the surface of a tooth includes providing the dental article and applying a coating including upconversion phosphors to a surface of the dental article. The method also includes applying a dental cement composition to the surface of the tooth and placing the dental article on the surface of the tooth such that the coating is adjacent the dental cement composition. The dental cement composition includes a polymerizable resin and a photoinitiator and is substantially free of upconversion phosphors. The method further includes irradiating the coating with a radiation source that emits radiation at a pre-determined fixed wavelength that causes the upconversion phosphors to emit radiation at an activation wavelength of the dental cement composition photoinitiator such that the dental cement composition cures in a region adjacent the coating and removing remaining uncured dental cement composition outside the dental article from the tooth.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: March 26, 2019
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Naim Karazivan, Hui Lu, Thomas Ertl
  • Publication number: 20180206947
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Naim Karazivan, Christos Angeletakis, Dustin Gaidos, Leonid Silverman, Xin HUO
  • Publication number: 20180206948
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Naim Karazivan, Xin HUO, Dustin Gaidos, Leonid Silverman
  • Publication number: 20180206956
    Abstract: A light curing impression system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure impression material. The light curing impression system generally includes an LED light source, a light emitting impression tray, an activation module and impression material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Naim Karazivan, Christos Angeletakis, Thomas Ruth, William Kane, Joseph Gordon, Luke Hagan, David Copeland, Andrew Burke, Dustin Gaidos, Leonid Silverman, Kenneth Focht
  • Publication number: 20180206955
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Naim Karazivan, Paul Pierson, Christos Angeletakis
  • Patent number: D845489
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 9, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Andrew Coste, Naim Karazivan, Dustin Gaidos, Michael Metz
  • Patent number: D845490
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 9, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Andrew Coste, Naim Karazivan, Dustin Gaidos, Michael Metz
  • Patent number: D922636
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 15, 2021
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Andrew Coste, Naim Karazivan, Dustin Gaidos, Michael Metz